Biometric access control is a very practical security method. Biometrics in access control is using human characteristics to authenticate someone to being able to access system information. Your fingerprint readers are the most common biometric devices in mass production. It is practical to implement fingerprint readers biometric access control because fingerprints cannot be loaned out, forgotten, easily duplicated, or changed over time. Many readers will accept fingerprints from multiple fingers in case your primary finger is not available.
The reliability rests on both the biometric programmer and biometric access control system itself.
Accuracy is crucial when dealing with biometrics. Many of the factors that need to be looked at when testing and deploying biometrics are false reject/accept rates, throughput rate, and acceptability to users. A fingerprint reader currently is much more realistic on a large scale then a full-fledged DNA scanner. The realism is achieved by cost, accuracy, and feasibility. Some of the privacy problems with biometrics systems include unauthorized, collection, use, forensic usage, or function creep.
Biometric access control is not for everywhere. Some cultures and religions go as far as disfavor towards photographing the individuals; therefore, it is especially important when dealing the Middle East and needing females to remove their head garments.
CHARACTERISTICS OF BIOMETRIC SYSTEMS . (n.d.). from http://www.ccert.edu.cn/?education/?cissp/?hism/?039-041.html
Harris, T. (n.d.). How Fingerprint Scanners Work. Retrieved June 29, 2010, from http://www.howstuffworks.com/?fingerprint-scanner.htm